Range Class

Contains the common settings that define the range displayed by an axis.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v19.2.dll

Declaration

public abstract class Range :
    ChartElement
Public MustInherit Class Range
    Inherits ChartElement

Remarks

The Range class serves as a base for the VisualRange and WholeRange classes, and declares properties that define the common visible range settings of axes.

Among the main settings exposed via the properties of the Range class, there is the capability to explicitly specify the minimum and maximum axis values - in axis units appropriate for the axis scale type (via the Range.MinValue and Range.MaxValue properties), or obtain values in internal floating representations of the axis values irrespective of the axis scale type (via the Range.MinValueInternal and Range.MaxValueInternal properties). Or, you can force these values to be calculated automatically based upon the chart's data (by enabling the Range.Auto property).

Moreover, in a similar way, and using similar options, you can control the whole range of an axis, via its AxisBase.WholeRange property.

For more information, refer to Visual Ranges and Whole Ranges .

Examples

This example demonstrates how to use the AxisBase.VisualRange property to define the visible range of an axis, and the AxisBase.WholeRange property to define its whole range.

For more information on axis range, refer to Visual Ranges and Whole Ranges .

using DevExpress.XtraCharts;
using System;
using System.Windows.Forms;

namespace WindowsFormsApplication1 {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e) {

            // Create a chart control.
            ChartControl chartControl1 = new ChartControl();

            // Add the chart to the form.
            chartControl1.Dock = DockStyle.Fill;
            this.Controls.Add(chartControl1);

            // Create a bar series and add points to it.
            Series series1 = new Series("Series 1", ViewType.Bar);
            series1.Points.Add(new SeriesPoint("A", new double[] { 26.25 }));
            series1.Points.Add(new SeriesPoint("B", new double[] { 1.52 }));
            series1.Points.Add(new SeriesPoint("C", new double[] { 22.21 }));
            series1.Points.Add(new SeriesPoint("D", new double[] { 15.35 }));
            series1.Points.Add(new SeriesPoint("E", new double[] { 4.15 }));

            // Add the series to the chart.
            chartControl1.Series.Add(series1);

            // Cast the chart's diagram to the XYDiagram type, to access its axes.
            XYDiagram diagram = (XYDiagram)chartControl1.Diagram;

            // Enable the diagram's scrolling.
            diagram.EnableAxisXScrolling = true;
            diagram.EnableAxisYScrolling = true;

            // Define the whole range for the X-axis. 
            diagram.AxisX.WholeRange.Auto = false;
            diagram.AxisX.WholeRange.SetMinMaxValues("A", "D");

            // Disable the side margins 
            // (this has an effect only for certain view types).
            diagram.AxisX.VisualRange.AutoSideMargins = false;

            // Limit the visible range for the X-axis.
            diagram.AxisX.VisualRange.Auto = false;
            diagram.AxisX.VisualRange.SetMinMaxValues("B", "C");

            // Define the whole range for the Y-axis. 
            diagram.AxisY.WholeRange.Auto = false;
            diagram.AxisY.WholeRange.SetMinMaxValues(1, 26);
        }
    }
}
See Also